Gear shifting device with locking disengageable mechanism manually operated by a tool

A gear shifting device comprising:

• a frame;
• a shifting lever provided on an underside thereof with a positioning pin and pivotably attached to said frame;
• a locking member pivotably attached to said frame for preventing said positioning pin from falling when said shifting lever is in a parking position;
• an actuator for operating said locking member;
• and
• a hand-operated locking disengageable mechanism including;
• a) a disengaging member slidably attached to said frame for moving said locking member to a locking-release position where the positioning pin is not locked;
• b) a core pin removably attached to said frame so as to oppose said disengaging member, said core pin being rotatable between a locked position and an unlocked position by aid of a tool;
• c) a lid member removably attached to said frame so as to cover said core pin;
• and
• d) urging means for urging said disengaging member toward said core pin,
• wherein said core pin includes a cylindrical part, a flange part formed around said cylindrical part, and a pair of convex parts formed around said cylindrical part and under said flange part, and said core pin is provided inside said cylindrical part with an engagement groove for engaging with said tool, and
• wherein said flange part is provided with at least one notch which is so arranged as to face one of said convex parts.